AMP: 4
Location: S-518 and US-12, East Helena
No reassurance shield as Secondary 518 begins. 518 is a quick spur from East Helena down to I-15 in Montana City.
AMP: 0
Location: S-518 and I-15, Montana City, Jefferson Cty
Four miles later, we’ll approach I-15.
AMP: 0
Location: S-518 and I-15, Montana City, Jefferson Cty
Follow 15 north to Helena and 15 south to Butte.
AMP: 0
Location: S-518 and I-15, Montana City, Jefferson Cty
Turn right for I-15 north. Stay straight for I-15 south.
AMP: 0
Location: S-518 and I-15, Montana City, Jefferson Cty
Turn left for I-15 south to Butte. S-518 ends here, and the roadway turns into S-282.
S to MT-69, N to I-15 Bus/US-12/US-287
E to S-284, W to I-15/I-15 Bus/US-287
S to S-284, N to I-15/I-15 Bus/US-12